Jacquard indicator for drop-box looms



Sept. 22, 1925. 1,554,297

E. H. RYON JACQUNRD INDICATOR'VFOR DROP BOX LOOMS Filed April l9 1923 2 Sheets-Sheet 1 Sept. 22, 1925. 1,554,297

E." H. RYON JAGQUARD INDICATOR ion b3012- Box Locus Filed April 19, 1923 2 Sheets-Sheet 2 Patented Sept. 22, 1925.

UNITED STATES PATENT OFFICE.

EPPA H. RYON, or WAL'I'HAM, MASSACHUSETTS, ASSIGNOR T CROMPTON & KNOWLES LOOM wonxsaor WORCESTER, MASSACHUSETTS, A CORPORATION OF MASSACHU- SETT-S.

Application filed April 19,

To all whom it may concern:

' Be it known that I, ErrA H. RYoN, a citizen of the United States, residing at Valtham, in the county of Middlesex and State of Massachusetts, have invented a new and useful Jacquard Indicator for Drop-Box Looms, of which the following is a specification.

This invention relates to a drop box loom having a jacquard mechanism associated therewith and connected to indicate and control the movements of the drop boxes. Jacquard indicators have been heretofore known and used in which the indication by the jacquard was transmitted directly to the drop box controlling mechanism, and in which the parts were consequently entirely dependent for their time relation upon the movements of the jacquard lifter bars. It has been found in operation thatthis particular time relation is'not' well adapted to theoperative movements'of the drop! box mechanism and much difficulty has arisen on this account. I

It is the object of my present invention to provide a jacquard indicatorso' constructed that the indication from the jacquard will be transferred to the drop box mechanism by separately actuated devices which may be caused to operate in any desired time relation to the movements of the drop boxes. To the accomplishement of .thisyobject, I provide an actuatingmember connected to the 100m driving mechanism, and indicating' devices operated thereby but movable to operative or inoperative position by the jacquard mechanism.

My invention further relates to arrangements and combinations of parts which will be hereinafter described and more. particularly pointed out in the appended'claims.

A preferred form of my invention is shown in the drawings in which Fig. 1 is an end elevation of certainparts of a drop box loom embodying my improvements q Fig. 2 is a plan view of my improved indicator;

Fig. 3 is a side elevation thereof;

Fig. 4is a sectional plan view, taken along the line 4-4 in Fig.3; and

Fig.5 is a detail elevation showing certain parts in a different position.

Referring tothe' drawings, I have shown a 0 side'l drop b x litter rod 11 a JACQUARD INDICATOR FOR DROP-BOX LOOMS 1923. Serial No. 633,130.

of hell cranks 14 and 15 mounted on a fixed pivot 16. The bell cranks 14 and 15 are connected by links 17 to mutilated vibrator gears 18 mounted upon arms 19 pivoted at 20 to the loom side 10. A link ciated link 17 andbell crank 14 or 15;

A latch 190 (Fig. 1) [is provided for looking the vibrator lever 19 in raised or lowered position. This latch, is positively moved rearward to unlock the vibrator lever by a cam 191 fixed to rotate with the cylinder gear 25 and a sprin'g192 is. provided for yieldinglymoving the latch to locking position. The parts thus far described are or may be of the usual type and in themselves form no part of my present invention, which relates particularly to the mechanism provided for moving the indicating levers 22.

Each controlling device vor indicating lever 22 is positioned by a lug or projection 28 on the upwardly extending arm of a three-armed rocking lever or positioning member 29 loosely mounted on a fixed ivot 30. The lug or projection 28 on the ever 29 engages a cam surface of the lever 22 and movement of the lever 29 from one to the other of the two positions indicated in Fig. '3 causes the, corresponding indicating lever 22 to be raised or lowered. The lever 22 has such engagement with the rocking lever 29 that the lever is held yieldingly in one or the other of its two extreme positions.

The two horizontally disposed arms of each rocking lever 29 are provided with upwardly extending connections or indicating fingers 31, each provided with a hook-like projection 32. The upper ends of the fingers 31 are received in recesses 33 formed in the sides of sliding bars or pattern controlled members 34. 7 One end of each bar 34 is provided-with a straight slot 35 through which extends a fixed Stud 36, The other 21 connects the free end of each arm 19 end of each bar 34 has a curved or cam slot 37 through which a stud 38 extends.

Cords 39 and 40 extend from the opposite ends of each slide 34: through guides or bushing in guide arms -l-1, thence upwardly to the '3) is pivoted at 14 on the bracket 2 1- and is connected by alink to suitable driving mechanism-such as a cam'etti mountedto rota-te with a drivingshaft l7. A projection 48 extends laterally from the lever 43 in position to engage the hooks 32 of the indicating fingers 31. The lever 43 is regularly raised and lowered by the loom driving mechanism and upon each upward move ment engages such of the fingers 31 as have been moved into the patlr of the projection 18. Vhen one of the fingers is thus en-' gaged, its corresponding lever 29 will be rocked as the finger is raise'd, changing the position of the associated lever 22 and rais ing or lowering its link 21, arm 19 and gear Having thus' described the construction of my improved indicator, the operation thereof will be readily understood lVhenever one of the lifter wiresl-Q is engaged by a jacquard lifter bar 50, the. wire 4.2 will be raised, moving the associated cord 39 or 40 and thus shifting the corresponding sliding bar 34 in one direction or the other. The use of thecam slots 37 prevents accidental displacement of the bars'3 l. As each bar 34: is'moved in one direction or the other, one of its indicatinglingers 31 will*be moved into the path of the projection l8 and will remain in such position until it is engaged by the projection on the next upward'movement thereof. 7

This upward-movement of the actuator 43 and projection 4C8, however, need have no particular time relation to the time of movementof the bar 34 but should be in timed relation to the movement of the cam'191 which releases thevibrator levers 19.- This movementofl the actuator 13'may be at any time subsequent to the operation of the'jacquard and the movement of the bar 34. hen one of the fingers 31 is thus raised, it will-reverse the position of its rocking lever 29-, raising. or lowering the corresponding indicating lever- 22 and calling a change-in the position ofthe drop b'oxes;

I'ha-ve'thusprovided a very simple and reliablemechanism which avoids the necessity of moving the indicating'levers 22 in a definite and restricted time relation to the move ments of the lifter bars of the jacquard and the indicating levers are free for movement in any desired relation to the operation of the drop box mechanism.

Having thus described my invention and the advantages thereof, I do not wish to be limited to the details herein disclosed otherwise than as set forth in the claims, but what I claim is:

1. In a drop box loom, in combination, drop box actuating mechanism, a plurality of controlling devices therefor, a single actuator for said controllingdevices regularly moved by said loom, driving mechanism therefor, and additional pattern-controlled means including a jacquard mechanism effective to render said single operating member operable'or inoperable with reference to a selected controlling device.

,2. In a drop box loom, in combination, loom driving mechanism, a plurality of drop boxes, lifting mechanism therefor, and means to'rendcr said lifting mechanism offectivc. to produce a selected box movement,-

fective to produce a selected box movement,

said means including an actuator operatively connected to the loom driving mechanism, indicating levers connected to control the'operation of the lifting mechanism, rocking levers positioning said indicating. levers, a pair of connections between each rocking lever and said actuator, and pattern-controlled means to render a selected connectio operative.

41. In a drop box loom, in combination, a plurality of drop boxes, actuating mechanism-therefor, a plurality of indicating levers controlling the operation thereof, a regularly moved actuator for said indicating levers, and additional, pattern-controlled mechanism including ajacquard mechanism effective to render said actuator operative to move a selected indicating lever.

5. In a drop box loom, in combination, a plurality of drop boxes, actuating mechanism therefor, a plurality of-indicating levers controlling the operation thereof, a rocking lever for each indicating lever, a pair of hooked indicating fingers mounted on' each rocking lever, a regularly moved actuator positioned adjacent said fingers, a

u' at jacquard mechanism, and connections from said jacquard mechanism to said fingers by which aselected finger maybe moved to place its hook in the path of said actuator.

6. In a drop box loom, in combination, a plurality of drop boxes, actuating mechanism therefor, a plurality of indicating levers controlling the operation thereof, a rocking lever for each lever, a pair of indicating fingers mounted on each rocking lever, a regularly moved actuator positioned adjacent said fingers, a sliding bar for each pair of indicating fingers, said bar having notches to receive the ends of said fingers,

Y a jacquard mechanism, and connections from said jacquard mechanism to said sliding bars whereby a selected bar may be moved in a desired direction to operatively position one of the fingers associated therewith. a

7. In a drop box loom, in combination, a plurality of drop boxes, lifting mechanism therefor, a plurality of indicating levers controlling the operation thereof, a rocking lever for each lever, a pair of indicating fingers mounted on each rocking lever, a regularly moved actuator positioned adjacent said fingers, a sliding bar for each pair of indicating fingers, said bar having notches to receive the ends of said fingers, a jacquard mechanism, connections from said jacquard mechanism to said slidingbars whereby a selected bar may be moved in a desired direction to operatively position one of the fingers associated therewith, and means to hold said bars yieldingly in either extreme position.

8. In combination, supporting means, going means including the reciprocating shed-forming element of a loom and a pair of moving actuators moving in relatively opposite directions, mechanism to be driven engaged with one of the actuators, carrier means for said mechanism shittable tomove the latter into engagement with the other actuator, said going means also including a third moving actuator from which to cause shifting of the carrier means, motion transmitting means for transmitting shifting motion from the third actuator to the carrier means having a coupling connectible with one of them, means to control said coupling including another coupling movable into and out of the path of movement of said element and adapted to be moved thereby whenv the latter moves in onedirection, and pattern-controlled means for controlling the movement of the latter coupling.

9. In combination, supporting means, going means including the reciprocating shedto-rming element of a loom and a pair of moving actuators moving-in relatively opposite directions, mechanism to be driven engaged with one of the actuators and normally urged into engagement With the other of them, carrier means for said mechanism movable therewith, a detent opposing movement of the carrier means andconsequently of said mechanism and movable to clear the carrier means, said going means also including a third moving actuator, means to transmit movement from the third actuator to said detent having a coupling connectible with one of them, means to control said coupling including another coupling movable into and out of the path of movement of said element and adapted to be moved thereby when the latter moves in one direction, and pattern-controlled means for controlling the movement of the latter coupling.

10. In combination, supporting means, go-- ing means including the reciprocating shed forming element of a loom and a pair of moving actuators moving in relatively opposite directions, mechanism to be driven normally held in position of engagement with one of said actuators, carrier means for said mechanism shiftable to move the latter into engagement with the other actuator, a cam engaged by the carrier means and movable to two different positions, one to cause shifting of said mechanism and the other to re lease the same, said going means also including a third moving actuator, separate means to shift the cam to said positions, respectively, each including a coupling connectible with the third actuator, separate means respectively controlling said couplings and each including another coupling movable into and out of the path of movement of said element and adapted to be moved thereby when the latter moves in one direction, and

patterlrcontrolled means for controlling the movementof the latter couplings.

11. A drop boxactuating and controlling mechanism having, in combination, a frame, a pair of cylinder gears mounted in said frame and rotated in opposite directions,

drop box actuating mechanism, vibrator gears connected thereto, vibrator levers for said vibrator gears, movableto cause said gears to engage with either one of said cylinder gears, an actuator having regular actuating movements, means to connect said actuator to raise or lower a selected vibrator gear, said latter, means including actuatorengaged controlling elements, and means to select and move one of said controlling elements into the path of said actuator, said selective means including a jacquard mechanism having lifter bars, lifter wires connected to said controlling elements, and patnient' by said acquard mechanism.

13; A drop box actuating and controlling '5' n'i'ec'hanismfa'sset forth in claim 11, in which the'means' for selectively moving the controlling elements includes a positioning member movable t0 difi'erent operative positions, said positioning member being effective to move said control-ling elements into and'o'ut of the path of said actuator and in which certain jacquard lifter Wires are connected to selectively move said positioning member'as indicated by the jacquard pattern.

In testimony whereof I have hereunto affixed my signature.

EPPA H. RYON. 

